On the Stability of a class of Modified Gravitational Models
| dc.creator | Cognola, Guido | |
| dc.creator | Gastaldi, Monica | |
| dc.creator | Zerbini, Sergio | |
| dc.date | 2007-01-25 | |
| dc.date | 2007-05-09 | |
| dc.date.accessioned | 2026-07-07T11:57:44Z | |
| dc.date.available | 2026-07-07T11:57:44Z | |
| dc.description | Motivated by the dark energy issue, a minisuperspace approach to the stability for modified gravitational models in a four dimensional cosmological setting are investigated. Specifically, after revisiting the $f(R)$ case, $R$ being the Ricci curvature, we present a stability condition around a de Sitter solution valid for modified gravitational models of generalized Gauss-Bonnet type $F(R,G,Q)$, $G$ and $Q$ being the Gauss-Bonnet and quadratic Riemann invariants respectively. A generalization to higher order invariants is mentioned. | |
| dc.description | latex, 13 pag., no figures. Major revision, an additional Section added with new ewsults. New references added | |
| dc.identifier | https://arxiv.org/abs/gr-qc/0701138 | |
| dc.identifier | http://arxiv.org/abs/gr-qc/0701138 | |
| dc.identifier | Int.J.Theor.Phys.47:898-910,2008 | |
| dc.identifier | doi:10.1007/s10773-007-9516-x | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/205986 | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.title | On the Stability of a class of Modified Gravitational Models | |
| dc.type | text |